A7V333 w/XP 2200+ HELP!

Help! I cant get my system to run stable. I keep getting the blue screen of death when I set my processor to run at its rated 1800 MHZ (13.5 X 133). The processor is stable at the default 13.5 X 100 setting however. Also, my hard disk access is extremely, extremely slow -- the access light is on but it seems to freeze up for about a minute then go on, then freeze, then go on, and so on. I'm very frustrated and have tried everything. I have verified all jumpers are set correctly. Maybe there is something messed up with my IDE? I have tried re-formatting the HD and starting over with a fresh install but it takes about 5 hours to install XP.

Any help is appreciated. Here is the current config:

A7V333 w/XP 2200+
512 MB PC2100 DDR RAM
Leadtech A250 GF4 Ti4400 128MB card

Help! I'm about to beat the computer with a sledgehammer!